Pete,
conduit.ncep.noaa.gov is a load-balanced DNS that points to both conduit1
and conduit2 servers on the backend. I'm going to see if we can push you
all off of conduit2 for now, hopefully those of you connected to conduit2
will see a brief interruption and then connect to conduit1 automatically.
More to come.
Anne
On Fri, Aug 20, 2021 at 1:12 PM Pete Pokrandt <poker@xxxxxxxxxxxx> wrote:
> It looks like conduit.ncep.noaa.gov is pulling data from both
> vm-lnx-conduit1 and vm-linux-conduit2 - conduit1 seems ok, it's just
> conduit2 that is showing the large lags.
>
> I don't know how things are set up exactly, but it might work to have
> conduit.ncep.noaa.gov only request CONDUIT data from vm-lnx-conduit1
> until the problem with feeding from conduit2 is resolved?
>
> Unidata folks, any suggestions from your end?
>
> Thanks, we do appreciate all your work on our behalf!
> Pete
>
>
>
> <http://www.weather.com/tv/shows/wx-geeks/video/the-incredible-shrinking-cold-pool>
> -----
> Pete Pokrandt - Systems Programmer
> UW-Madison Dept of Atmospheric and Oceanic Sciences
> 608-262-3086 - poker@xxxxxxxxxxxx
>
> ------------------------------
> *From:* Anne Myckow - NOAA Federal <anne.myckow@xxxxxxxx>
> *Sent:* Friday, August 20, 2021 12:07 PM
> *To:* Pete Pokrandt <poker@xxxxxxxxxxxx>
> *Cc:* dustin.sheffler@xxxxxxxx <dustin.sheffler@xxxxxxxx>;
> ncep.list.pmb-dataflow@xxxxxxxx <ncep.list.pmb-dataflow@xxxxxxxx>;
> conduit@xxxxxxxxxxxxxxxx <conduit@xxxxxxxxxxxxxxxx>;
> support-conduit@xxxxxxxxxxxxxxxx <support-conduit@xxxxxxxxxxxxxxxx>
> *Subject:* Re: High CONDUIT latencies from vm-lnx-conduit2.ncep.noaa.gov
>
> Hi Pete,
>
> We have a lot of systems and applications running out of College Park
> right now, which I think is part of it. But I will have someone take a look
> at conduit2 today, see if maybe we need to try and move your connections to
> conduit1 instead.
>
> Thanks,
> Anne
>
> On Fri, Aug 20, 2021 at 12:54 PM Pete Pokrandt <poker@xxxxxxxxxxxx> wrote:
>
> Dear Anne, Dustin and all,
>
> Did you see this? We are still experiencing high latencies of 800-1000
> seconds on our CONDUIT feeds during the times when the GFS comes through
> that appear to be coming from the host
>
> vm-lnx-conduit2.ncep.noaa.gov
>
> Here are the most recent lags. Any ideas?
>
> Thanks,
> Pete
>
>
> https://rtstats.unidata.ucar.edu/cgi-bin/rtstats/iddstats_nc?CONDUIT+idd-agg.aos.wisc.edu
>
>
>
>
>
> https://rtstats.unidata.ucar.edu/cgi-bin/rtstats/iddstats_nc?CONDUIT+conduit.unidata.ucar.edu
>
>
>
>
> <http://www.weather.com/tv/shows/wx-geeks/video/the-incredible-shrinking-cold-pool>
> -----
> Pete Pokrandt - Systems Programmer
> UW-Madison Dept of Atmospheric and Oceanic Sciences
> 608-262-3086 - poker@xxxxxxxxxxxx
>
> ------------------------------
> *From:* Pete Pokrandt
> *Sent:* Wednesday, August 18, 2021 3:02 PM
> *To:* anne.myckow@xxxxxxxx <anne.myckow@xxxxxxxx>;
> dustin.sheffler@xxxxxxxx <dustin.sheffler@xxxxxxxx>;
> ncep.list.pmb-dataflow@xxxxxxxx <ncep.list.pmb-dataflow@xxxxxxxx>
> *Cc:* conduit@xxxxxxxxxxxxxxxx <conduit@xxxxxxxxxxxxxxxx>;
> support-conduit@xxxxxxxxxxxxxxxx <support-conduit@xxxxxxxxxxxxxxxx>
> *Subject:* High CONDUIT latencies from vm-lnx-conduit2.ncep.noaa.gov
>
> Dear Anne, Dustin and all,
>
> Recently we have noticed fairly high latencies on the CONDUIT ldm data
> feed originating from the machine vm-lnx-conduit2.ncep.noaa.gov. The feed
> originating from vm-lnx-conduit1.ncep.noaa.gov does not have the high
> latencies. Unidata and other top level feeds are seeing similar high
> latencies from vm-lnx-conduit2.ncep.noaa.gov.
>
> Here are some graphs showing the latencies that I'm seeing:
>
> From
> https://rtstats.unidata.ucar.edu/cgi-bin/rtstats/iddstats_nc?CONDUIT+idd-agg.aos.wisc.edu
> -
> latencies for CONDUIT data arriving at our UW-Madison AOS ingest machine
>
>
>
> From
> https://rtstats.unidata.ucar.edu/cgi-bin/rtstats/siteindex?conduit.unidata.ucar.edu
> (latencies
> at Unidata)
>
>
>
> At least here at UW-Madison, these latencies are causing us to lose some
> data during the large GFS/GEFS periods.
>
> Any idea what might be causing this?
>
> Pete
>
>
>
>
>
> <http://www.weather.com/tv/shows/wx-geeks/video/the-incredible-shrinking-cold-pool>
> -----
> Pete Pokrandt - Systems Programmer
> UW-Madison Dept of Atmospheric and Oceanic Sciences
> 608-262-3086 - poker@xxxxxxxxxxxx
>
>
>
> --
> Anne Myckow
> Dataflow Team Lead
> NWS/NCEP/NCO
>
--
Anne Myckow
Dataflow Team Lead
NWS/NCEP/NCO
